Use of multivitamins, intake of B vitamins, and risk of ovulatory infertility Jorge E. Chavarro, M.D., Sc.D., Janet W. Rich-Edwards, Sc.D., M.P.H., Bernard A. Rosner, Ph.D., Walter C. Willett, M.D., Dr.P.H. Fertility and Sterility Volume 89, Issue 3, Pages 668-676 (March 2008) DOI: 10.1016/j.fertnstert.2007.03.089 Copyright © 2008 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Multivariate-adjusted (see Table 4, footnote c) relative risk of ovulatory infertility by total intake of folic acid among noncontracepting women (women who did not report recent use of hormonal contraception, barrier methods, intrauterine devices, or spermicides). Fertility and Sterility 2008 89, 668-676DOI: (10.1016/j.fertnstert.2007.03.089) Copyright © 2008 American Society for Reproductive Medicine Terms and Conditions